The proof is all around you -- you are immersed in it. Careful thought will get you there. Faith, as such, is not required but it can be helpful, if only because it is an indicator of due modesty.
Then maybe since you’ve abandoned that “due modesty” to call all disbelievers irrational, you can be the first person to “prove” it as you claim you can rather than sink into the ambiguous and childish little one-liners that we’ve seen from you on this thread.